US PATENT SUBCLASS 562 / 584
.~.~.~.~.~ Citric acid per se or salt thereof

Current as of: June, 1999
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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
400  DF  .~ Carboxylic acids and salts thereof {14}
512  DF  .~.~ Acyclic {14}
579  DF  .~.~.~ Oxy {7}
582  DF  .~.~.~.~ Polycarboxylic {3}
584.~.~.~.~.~ Citric acid per se or salt thereof

DEFINITION

Classification: 562/584

Citric acid, per se, or salt thereof:

(under subclass 582) The compound which is citric acid (structure below) or its salts and processes for its preparation not provided for above.